Muscles passing from the trunk to the scapula

Question 1

Points of Attachment and Action of serratus anterior

Answer 1

1st to 9th rib. then to the Medial margin of the costal surface of the scapula (anterior surface)
Pulls scapula forward, elevation of the arm

Question 2

Points of Attachment and Action of Levator Scapulae

Answer 2

Traverse process of vertebrae C1 to C4 to the medial border of the superior angle

Question 3

Points of Attachment and Action of Rhomboid Major

Answer 3

Spinous processes of the vertebrae T2 to T5 to the medial margin of the scapula
Stabilisation, retraction, elevation and internal rotation of the scapula

Question 4

Points of Attachment and Action of Rhomboid Minor

Answer 4

Spinous processes of C7 and T1 to Medial margin of the scapula

Question 5

Points of Attachment and Action of Trapezius

Answer 5

Nuchal Ligament, C7 to T12, occipital bone to the Lateral one third of the clavicle, medial side of the acronium and upper crest and tubercle of the scapular spine
Retraction, superior rotation, elevation and depression of the scapula

Question 6

Points of Attachment and Action of Pectoralis Major

Answer 6

Medial half of the clavicle, the manubrium, the body of the sternum the costal cartilages of ribs 1 to 6 to the crest of the greater tubercle of the humerous

Question 7

Points of Attachment and Action of Subclavius

Answer 7

1st rib to the acromial end of the clavicle

Draws clavicle downward and forward

Question 8

Points of Attachment and Action of Latissimus dorsi

Answer 8

9th to 12th ribs, spinous processes of the T7 to T12 vertebrae ant the posterior third of the iliac crest to the crest of the lesser tubercle of the humerus and the bicipital groove

Question 9

Points of Attachment and Action of Deltoid

Answer 9

Acromion,, crest o fht espine of the scapula, lateral third of the clavicle